CVE-2026-70635

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-07. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.1Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read vulnerability that allows authenticated attackers to cause query-result integrity failures or backend crashes by supplying a crafted Simple8b selector-11 value, which is stored in the signed int16 Arrow dictionary-index type and bypasses index validation checks in bulk text dictionary decompression. Attackers with direct DML access to a non-frozen physical compressed hypertable relation can trigger an out-of-bounds read before the base of the live offsets array through the VectorAgg single-text hashing strategy, resulting in incorrect aggregation output, backend SIGSEGV, or PostgreSQL crash recovery depending on build configuration.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
32
EG Risk 32/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.4%
EPSS %ILE
36th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 6, 2026

Last Modified

September 1, 2026

Advisory Details (2)

Auto-updated Aug 6, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
github_commit

commit 517c13e7cc6a (timescale/timescaledb)

Fix landed in timescale/timescaledb commit 517c13e7cc6a — awaiting tagged release

https://github.com/timescale/timescaledb/commit/517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3
github_pr

Fix crashes with malformed compressed data

Fix merged in timescale/timescaledb PR #10360 on 2026-08-03 — awaiting tagged release

https://github.com/timescale/timescaledb/pull/10360

Vendor Advisories for CVE-2026-70635(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 90× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 208 total refreshes for this CVE.

  1. 2026-10-04 23:23 UTCEG score recompute
  2. 2026-10-04 23:23 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 05:50 UTCEG score recompute
  5. 2026-10-04 05:50 UTCGHSA enrichment
  6. 2026-10-03 14:26 UTCEPSS rescore
  7. 2026-10-03 01:04 UTCEG score recompute
  8. 2026-10-03 01:04 UTCGHSA enrichment
  9. 2026-10-02 17:56 UTCEPSS rescore
  10. 2026-10-02 09:39 UTCEG score recompute
  11. 2026-10-02 09:39 UTCGHSA enrichment
  12. 2026-10-01 19:50 UTCEPSS rescore
  13. 2026-10-01 14:04 UTCGHSA enrichment
  14. 2026-10-01 01:43 UTCEG score recompute
  15. 2026-10-01 01:43 UTCGHSA enrichment
  16. 2026-09-30 15:03 UTCEPSS rescore
  17. 2026-09-29 05:54 UTCEG score recompute
  18. 2026-09-29 05:54 UTCGHSA enrichment
  19. 2026-09-28 13:52 UTCEPSS rescore
  20. 2026-09-28 05:49 UTCGHSA enrichment
  21. 2026-09-27 17:29 UTCEG score recompute
  22. 2026-09-27 17:29 UTCGHSA enrichment
  23. 2026-09-27 13:48 UTCEPSS rescore
  24. 2026-09-26 15:59 UTCEPSS rescore
  25. 2026-09-25 04:22 UTCEG score recompute
Show 75 more
  1. 2026-09-25 04:22 UTCGHSA enrichment
  2. 2026-09-24 02:29 UTCEG score recompute
  3. 2026-09-24 02:29 UTCGHSA enrichment
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 14:09 UTCGHSA enrichment
  6. 2026-09-23 01:50 UTCEG score recompute
  7. 2026-09-23 01:50 UTCGHSA enrichment
  8. 2026-09-22 13:30 UTCGHSA enrichment
  9. 2026-09-22 01:09 UTCEG score recompute
  10. 2026-09-22 01:09 UTCGHSA enrichment
  11. 2026-09-21 21:09 UTCEPSS rescore
  12. 2026-09-21 12:48 UTCEG score recompute
  13. 2026-09-21 12:48 UTCGHSA enrichment
  14. 2026-09-20 20:16 UTCEPSS rescore
  15. 2026-09-20 10:57 UTCGHSA enrichment
  16. 2026-09-19 21:27 UTCEG score recompute
  17. 2026-09-19 21:27 UTCGHSA enrichment
  18. 2026-09-19 07:28 UTCEG score recompute
  19. 2026-09-19 07:28 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-18 17:36 UTCGHSA enrichment
  22. 2026-09-18 03:35 UTCEG score recompute
  23. 2026-09-18 03:35 UTCGHSA enrichment
  24. 2026-09-17 15:15 UTCGHSA enrichment
  25. 2026-09-17 00:58 UTCEG score recompute
  26. 2026-09-17 00:58 UTCGHSA enrichment
  27. 2026-09-16 14:08 UTCEPSS rescore
  28. 2026-09-16 05:15 UTCEPSS rescore
  29. 2026-09-16 02:59 UTCGHSA enrichment
  30. 2026-09-15 14:26 UTCEG score recompute
  31. 2026-09-15 14:26 UTCGHSA enrichment
  32. 2026-09-15 03:12 UTCEPSS rescore
  33. 2026-09-15 01:09 UTCGHSA enrichment
  34. 2026-09-14 10:12 UTCGHSA enrichment
  35. 2026-09-13 21:44 UTCEG score recompute
  36. 2026-09-13 21:44 UTCGHSA enrichment
  37. 2026-09-13 09:23 UTCGHSA enrichment
  38. 2026-09-12 21:02 UTCEG score recompute
  39. 2026-09-12 21:02 UTCGHSA enrichment
  40. 2026-09-12 15:02 UTCEPSS rescore
  41. 2026-09-12 08:42 UTCGHSA enrichment
  42. 2026-09-11 20:22 UTCEG score recompute
  43. 2026-09-11 20:22 UTCGHSA enrichment
  44. 2026-09-11 14:53 UTCEPSS rescore
  45. 2026-09-11 07:54 UTCGHSA enrichment
  46. 2026-09-10 19:34 UTCEG score recompute
  47. 2026-09-10 19:34 UTCGHSA enrichment
  48. 2026-09-10 09:35 UTCEPSS rescore
  49. 2026-09-10 07:12 UTCGHSA enrichment
  50. 2026-09-09 18:52 UTCGHSA enrichment
  51. 2026-09-09 06:08 UTCEG score recompute
  52. 2026-09-09 06:07 UTCGHSA enrichment
  53. 2026-09-08 22:01 UTCEPSS rescore
  54. 2026-09-08 07:41 UTCGHSA enrichment
  55. 2026-09-07 17:55 UTCEG score recompute
  56. 2026-09-07 17:55 UTCGHSA enrichment
  57. 2026-09-07 16:01 UTCEPSS rescore
  58. 2026-09-06 17:04 UTCEG score recompute
  59. 2026-09-06 17:04 UTCGHSA enrichment
  60. 2026-09-06 13:47 UTCEPSS rescore
  61. 2026-09-06 04:43 UTCEG score recompute
  62. 2026-09-06 04:43 UTCGHSA enrichment
  63. 2026-09-05 16:22 UTCEG score recompute
  64. 2026-09-05 16:22 UTCGHSA enrichment
  65. 2026-09-05 15:31 UTCEPSS rescore
  66. 2026-09-05 03:31 UTCEG score recompute
  67. 2026-09-05 03:31 UTCGHSA enrichment
  68. 2026-09-04 09:11 UTCEG score recompute
  69. 2026-09-04 09:11 UTCGHSA enrichment
  70. 2026-09-04 05:07 UTCEPSS rescore
  71. 2026-09-03 19:12 UTCGHSA enrichment
  72. 2026-09-03 06:15 UTCEG score recompute
  73. 2026-09-03 06:14 UTCGHSA enrichment
  74. 2026-09-02 14:12 UTCEPSS rescore
  75. 2026-09-02 06:56 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-70635?
CVE-2026-70635 is a high vulnerability published on August 6, 2026. TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read vulnerability that allows authenticated attackers to cause query-result integrity failures or backend crashes by supplying a crafted Simple8b selector-11 value, which is stored in the signed int16 Arrow…
When was CVE-2026-70635 disclosed?
CVE-2026-70635 was first published on August 6, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70635 actively exploited?
CVE-2026-70635 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-70635?
CVE-2026-70635 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-70635?
An upstream fix for CVE-2026-70635 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-70635 are linked in the Vendor Advisories panel on this page.

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